Tales of Lagoona: Orphans of the Ocean is a timed hidden object game that features a renovation theme. The mermaid Islabelle needs the player's help to save the New Anemone Orphanage from a greedy developer. The only way to stop demolition of the structure is by renovating it. Yet, the orphanage doesn't have a lot of money. The player must help Islabelle and her charges find valuable items they've collected over the years to sell at the local market.
The items are located inside the orphanage and secret areas inside of rooms. The player must collect gems to unlock new rooms. During a search, they use the object names on plaques below a scene as an item checklist. They must retrieve all objects before they run out of time on an upper-right timer. If they're willing to view ads, they can access three hints via the Hint button with each ad view.
Tales of Lagoona recognizes the player's achievements with trophies. After they send valuable items to the market, they receive gold coins with each sale. They use the coins to pay for renovations, as prompted by the game. Each renovation includes three style options, such as three different fountain designs.
